Rapid Turbo Pascal graphics tutor
著者
書誌事項
Rapid Turbo Pascal graphics tutor
Philadelphia : Institute of Physics Pub., c1992
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注記
System requirements for computer disk: IBM PC; DOS; Turbo Pascal; color monitor recommended
Includes index
内容説明・目次
内容説明
This interactive text/disc package will help the reader to master Turbo Pascal Graphics faster than with a conventional book, a series of lectures or thumbing through thick manuals. Not only will the student learn more using this package, but the teacher needs to do less teaching. It is aimed at the general user of Turbo Pascal who wants to find out rapidly what is available in TP Graphics and who wants to start writing application programmes.
Learning is split up into manageable chunks which are interspersed with activities to illustrate the principles covered. Fifteen demonstration programs and solutions to the activities in the text are supplied on a 720kb 3.5 inch MS-DOS disc.
目次
Some preliminaries: A simple model of computer graphics. Vector and raster graphics. Graphics on PCs. Help facility in turbo pascal. Starting turbo pascal graphics: Initialise graphics and obtain graphics error messages. Move current pointer CP, output text strings in graphics mode clear the screen and initialise all graphics values. Obtain some useful information about your graphics set up. Switch between graphics and text modes. Draw lines in absolute and relative coordinates, draw rectangles, plot pixels, draw polylines and polygons. Select viewports. Close the graphics. Color and linestyle: Set color and enquire about it. Use the functions random and keypressed. Obtain information on the current palette. Change the colors in the current palette. Set linestyle, linewidth and enquire about it. Set background color and enquire about it. Erase linedrawn figures using setwritemode. Erase figures by drawing them in background color. Drawing curves: Draw circles. Draw circular arcs. Draw elliptical arcs. Obtain thick curves. Obtain information about the end points of an arc. Filling with color and pattern: Select a pre-defined fill pattern. Select a user-defined fill pattern. Flood fill. Draw the filled graphics primitives: bar, bar3D, pieslice, sector, fillellipse and fillpoly. Selecting fonts: Select various fonts and sizes. How to justify text. How to vary character width and height independently for the stroked fonts. Copying images: Imagesize function to get the size of an image. Getmem procedure to grab memory on the heap. Get image procedure to copy the image to memory. Put image procedure to copy the saved image on the screen. The effects of copyput, xorput, orput, andput and notput when the image is copied on to a background. Simple animation. Appendix.
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